link to MCC ELOG entry:
http://opweb.acc.jlab.org/CSUEApps/elog02/elog_item.php?elog_id=1554228
A: sigma X = .1476 +/- .04, sigma Y = .0744 +/- .089 B: sigma X = .0945 +/- .0017, sigma Y = .1735 +/- .0082